Patent · US Expired

Feed seal for bottom feed centrifuge

US4430071A · kind A · utility

8Cited by
5References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 27, 1982
Grant dateFeb 7, 1984
Priority date
Expiry dateMay 27, 2002

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB04B1/12
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A nozzle type centrifuge having a bottom feed inlet to a main pumping chamber at the base of the machine for injecting the feed slurry to a rotor bowl having separator discs for effecting a two-fraction separation comprising an overflow at the top and an underflow at the peripheral mid portion of the bowl with a portion of the underflow delivered to a return pumping chamber beneath the main pumping chamber and seal means between said chambers to prevent dilution of the underflow fraction.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.